427 bbc hp guesstimate

[J_PEPIN87]

Originally Posted by alex1

have the heads ported and that should get you close if not over. (if done properly)

before i installed the heads on the block i asked that question here, if i should get the heads ported or not and almost everybody told that it wouldn't be worth it. That i wouldn't even notice the gains if any so i didn't port them.